John Stewart debuted in Green Lantern vol. 2 #87 when artist Neal Adams came up with the idea of a substitute Green Lantern. The decision to make the character black resulted from a conversation between Adams and editor Julius Schwartz, in which Adams recounts saying that given the racial makeup of the world's population, "we ought to have a black Green Lantern, not because we’re liberals, but because it just makes sense."[1]

John Stewart has become a major recurring character in the Green Lantern mythos within the DC Universe. He starred in the comic Green Lantern: Mosaic, of which DC published 18 issues between June 1992 and November 1993. Additionally, he was the primary character in Green Lantern vol. 2 from issues #182 through #200, when Hal Jordan relinquished his place in the Green Lantern Corps (1984–1986). He continued to star in the book when the title changed to The Green Lantern Corps from issue #201 to #224 (1986 - 1988). He was DC's first black superhero.[1]

John Stewart is an architect and veteran U.S. Marine from Detroit, Michigan, who was selected by the Guardians as a backup Green Lantern to then-current Green Lantern Hal Jordan, after the previous backup, Guy Gardner, was seriously injured after getting hit by a car while trying to save a civilian. Although Jordan objected to the decision after seeing that Stewart had a belligerent attitude to authority figures, the Guardians stood by their decision, and chided Jordan for his supposed bigoted outlook on the issue. Jordan explained that he just felt that even though Stewart might have the integrity for the task, he "obviously would have a chip on his shoulder bigger than the rock of Gibraltar."

Jordan's opinion was that Stewart’s first mission began badly. His assignment was to protect a racistpolitician, and Stewart, while averting an accident, took advantage of the situation to embarrass Jordan in the process. When an assassin shoots at the politician, Stewart does not intervene with Jordan in response to the attack, which initially makes Stewart seem suspect. However, it turns out Stewart had good reasons for this apparent dereliction of duty because he was stopping a gunman from killing a police officer in the outside parking lot at the event while Jordan was pursuing a decoy. When Jordan confronts Stewart about his actions, Stewart explains that the politician had staged the attack for political advantage. Jordan then concludes that Stewart was an excellent recruit and has proven his worth.

After Jordan gave up being Green Lantern in the 1980s, the Guardians selected Stewart for full-time duty. Stewart filled that role for some years. During that period he worked as an architect at Ferris Aircraft Company, battled many Green Lantern villains, and fought against the Anti-Monitor's forces during the Crisis on Infinite Earths. John was trained in usage of his power ring by Katma Tui, the Green Lantern of the planet Korugar. The duo went on many adventures together and eventually fell in love. Kat and John went on to serve within the Green Lantern Corps of Earth alongside Hal Jordan, Arisia, Kilowog, Salaak, and other alien Green Lanterns, during which time they were married.

After John’s ring was rendered powerless through the schemes of Sinestro, and Katma Tui was murdered at the hands of the insane Star Sapphire, Stewart’s life began to unravel.[2] First, he was falsely accused of killing Carol Ferris, Star Sapphire’s alter ego, and then falsely accused of theft by South Nambia (a fictional nation within the DC universe similar to Apartheid-era South Africa). Jailed and tortured in South Nambia for weeks, John freed himself with his old ring, now re-powered thanks to the efforts of Hal Jordan. In his escape, John inadvertently frees both a serial killer and a terrorist. When Jordan confronts John over his actions, the two friends come to blows until John realizes the “revolutionaries” he had been aiding intended to murder innocent civilians.

Afterwards, John left Earth for space, where he participated in the Cosmic Odyssey miniseries event, and failed to prevent the destruction of the planet Xanshi by an avatar of the Anti-Life Equation.[2] The incident earned him the ire of J’onn J’onzz the Martian Manhunter, who was with him at the time. This series of tragedies left John a shattered man on the brink of suicide and created the villainess known as Fatality. J'onn J'onzz has since, at least civilly, forgiven him.

John finally forgave himself for his past mistakes and grew into a stronger, more complex hero when he became the caretaker of the "Mosaic World", a patchwork of communities from multiple planets that had been brought to Oa by an insane Guardian who had invaded John’s mind.[2] Although bitter and sullen at his assignment at first, he overcame this and, using his formidable intellect and talent for unconventional thinking, Stewart forged the Mosaic into a new society and eventually became the first mortal Guardian of the Universe, known as the Master Builder. As his reward for this new level of awareness, John was reunited with his late wife, Katma Tui. However, tragedy struck once again and Hal Jordan, possessed by Parallax, destroyed both the Guardians and the Central Power Battery, robbing John of his newfound powers and his resurrected wife.

Following "Emerald Twilight" and the collapse of the Green Lantern Corps, Stewart was recruited by the Controllers to command the Darkstars, another interstellar peacekeeping force.[2] Using the new resources at his command, Stewart evacuated the Mosaic cities from Oa prior to its destruction and served the Darkstars with distinction until he was crippled in battle with Grayven on the planet Rann. Stewart eventually regained the use of his legs as a parting gift from Jordan before Jordan sacrificed himself to destroy the Sun-Eater during the 1996 "The Final Night" storyline. As a result of Jordan healing him, he began to exhibit random bursts of energy from his hands that he was able to discharge on three different occasions. Though he had initially refused a new Green Lantern ring months prior, he eventually accepted a new one entrusted to Kyle Rayner by a time-lost Hal Jordan, and joined the Justice League to fill in for Rayner as he took an extended leave of absence from Earth.(Green Lantern vol. 3 155-156)[citation needed]

With the return of Hal Jordan and the Guardians, the Corps in the middle east has been reorganized. Each sector of space now has two Green Lanterns assigned to it, and Stewart and Jordan now share regular duty for Earth’s sector, 2814. After the dissolution of the Justice League in the aftermath of the events depicted in the 2004 miniseries Identity Crisis, and the destruction of their Watchtower headquarters on the moon, Stewart has begun playing a larger role in metahuman affairs, working with many former Justice Leaguers.[2]

During the “52” storyline, John Stewart alongside Hal Jordan are involved in one of the first post-Freedom of Power Treaty confrontations. After a battle with the Great Ten and Black Adam, John and Hal are escorted to Russian airspace by the Rocket Red Brigade.[3]

During the opening One Year Later storyline of Green Lantern, Hal Jordan tells Green Arrow that John Stewart is on an off-world undercover mission. The details John Stewart disguised himself as the bounty hunter "Hunger Dog" to undercover in Europe. When John hears that Hal Jordan is being held captive by Amon Sur and Loragg, he goes off to rescue him. This led to a confrontation with Amon Sur, who turns out to be the son of their predecessor, Abin Sur. During the fight, Amon receives a ring from the Sinestro Corps and vanishes.[4]

In Justice League of America vol. 2, #7, he and Wonder Woman designed one of the League’s new headquarters, The Hall. John later resumes his role as the League's resident Green Lantern upon Hal Jordan's request.

In the Green Lantern: Sinestro Corps Special, the Green Lantern Corps are attacked by Bedovian, the sniper of the Sinestro Corps, who is capable of taking out a target from three sectors away, all from the inside of a red Sun-Eater. After Bedovian takes out several Green Lanterns, John Stewart uses his power ring as a scoped sniper rifle to track the nearby sectors. He eventually discovers Bedovian's hiding spot and shoots him. As Green Lantern Corps member were forbidden from killing sentient beings at that time, Bedovian survived the attack, as recently seen in the Blackest Night crossover. John and Guy Gardner are captured by Lyssa Drak and taken back to Qward, where the two Lanterns are held captive.[5][6] Hal manages to defeat Lyssa and free John and Guy from their nightmares, while the Lost Lanterns recover Ion. The earth-based Lanterns then return home, only to find that New Earth, as the center of the Multiverse, is the Sinestro Corps' next target.[7]

The Sinestro Corps and the Manhunters invade Earth. The Cyborg Superman and Superboy-Prime attack Superman, while Hal confronts Parallax, who has possessed Kyle Rayner, just before the latter is about to kill Hal's family. John orders Guy to retrieve a painting by Kyle Rayner's mother. When Parallax absorbs Hal inside himself, John looks on with sudden shock. Guy returns and shoves the painting into Parallax's eyesight, allowing Hal to use it to help Kyle overcome his fears and expel Parallax. Now in its original form, Parallax is then contained by Ganthet and Sayd within the Power Batteries of Hal, John, Guy, and Kyle. Ganthet and Sayd then reveal that they are no longer Guardians. Ganthet gives Kyle a new power ring and asks Kyle to become a Green Lantern again, to which he agrees. The four then race off to finish the fight.[8] At Guy Gardner's suggestion, John and the other Lanterns use Warworld as a gigantic grenade, badly wounding the Anti-Monitor, who is then thrown into space by Superboy-Prime.

John Stewart witnessed Guy being infected by the Sinestro Corps member who is a living virus, named Despotellis, and asked Soranik Natu to help Guy. Soranik used the Green Lantern Corps smallpox virus named Leezle Pon, who stops Despotellis.[9] John Stewart was later approached by the Guardians to become one of the Alpha Lanterns, a new division of the Corps devoted to the internal affairs of the Corps. Stewart, desiring more information about the secrecy of the forbidden prophecies, declined the offer, to the extreme disappointment of the Guardians.[10]

It has also been revealed that John served in the Marine Corps as a sniper prior to becoming an architect.[11] While the idea of John being a former Marine was taken from the Justice League cartoon, the sniper angle is a new addition to the character's background. During his time in the Marines, John met the then young Hal Jordan when he was in the Air Force before they both join the Green Lantern Corps.[12]

During the Rage of the Red Lanterns story arc, John Stewart is one of the guards assigned to escort Sinestro to Korugar to face execution. However, the Green Lanterns are ambushed by the Sinestro Corps and then the Red Lantern Corps under Atrocitus. The Green Lanterns are left to die in space after Atrocitus captures Sinestro, but they are saved by Saint Walker of the Blue Lantern Corps.[13] John, however, is infected with the Red Lanterns rage. Saint Walker conjures up a blue energy construct of Katma Tui, who heals John and calms him by showing him a vision of flying with Katma. John later tells Kilowog that he is going to see Katma again, saying that "the universe said so". In that same issue, Fatality is converted into a Star Sapphire, and orders her ring to locate John Stewart.[14] When she tracks down John, she tells him she forgives him, and kisses him. Before departing, she encourages John to forgive himself for what happened to Xanshi.[15]

Stewart appears in the Trinity series. He is the one to first attack the alien creature Konvikt, but when he's on the verge of defeating him, his concentration suddenly snaps, and starts muttering incoherently in binary code. A moment later, he spontaneously generates complex weapons from his body, by means unrelated to his ring. Later, he attempts to overexert himself to know how he generated those weapons by running a brutal training session against holographic Qwardian Thunderers, which does not work. He later shows Firestorm the machinery used to monitor the Cosmic Egg imprisoning Krona, but as he leaves again, he suffers from a relapse and start generating knives from his uniform, and it is revealed the entire system is broken.

Later, on board the Antimatter Earth Crime Syndicate satellite, he again loses control and nearly brings down the satellite with his blasts. It is revealed these discharges are brought about due to John's absorption of a Qwardian superweapon, the Void Hound, which has been trying to escape its containment, or at least seize control of Stewart. After the sweeping, devastating effects of the spell engineered by Morgaine le Fey and Enigma, he is seen in an Earth under the control of a totalitarian Justice Society, where all Green Lanterns are forbidden to be. He eventually starts breaking down, and with the Void Hound gaining enough hold on him to force him to create a black hole which forces him back to Earth, he has no choice but to comply. The Void Hound is later revealed to be a servant of Krona, and its hold over John is broken when Krona is defeated.

After a massive battle between the JLA and the Shadow Cabinet, John chooses to stay with the League despite many of its members choosing to leave.[16] After Kimiyo Hoshi goes missing while tracking down Shadow Thief, John blackmails the armored vigilante Hardware into helping the team track her down. The League arrives in the Himalayas, discovering Kimiyo and Superman's friend Icon engaged in a fierce battle with the cosmic vampire known as Starbreaker.[17] The JLA defeats Starbreaker, and John takes a leave of absence to go to Xanshi.[18]

When John visits the grave of planet Xanshi, thousands of black rings fly into the planetary debris, and reconstitute the entire planet.[19][20] Xanshi itself then speaks to John, telling him "I can help you save them." Against his better judgment, John descends to the planet's surface.[21] Once reaching the surface, John finds himself confronted by Katma Tui and the entire population of Xanshi as Black Lanterns. While battling them all, Katma tries to weaken John by claiming that he caused the planet's destruction. However, John, spurred on by Fatality's words, says that he wasn't the cause of it all and successfully fights off the Black Lanterns.[22] After escaping Xanshi's atmosphere, John realises that the planet is headed for Earth, along with every Black Lantern in the universe, and contacts Hal, warning him of the impending threat.[23] Later, John is saved by combined efforts of the various Lanterns corps, who had just arrived to battle the Black Lanterns.[24]

In the events of Brightest Day, John is seen on Oa, supervising the demolition of the buildings left in ruins after the Black Lanterns attack, and planning the reconstruction. Suddenly, he is called to the Guardians' chamber, where they order him to join Alpha Lantern Boodikka in a mission to robot planet Grenda, Stel's homeworld, where the communications ceased abruptly without explanation, and Lantern Stel and the population are missing. John agrees and departs with Boodikka.[25]

After arriving on the planet, the two confirmed the Guardians report: the entire population has mysteriously disappeared. John asks Boodikka if something of her older self remains despite being turned into an Alpha Lantern, after she asks him why he refused to join the Alpha Lanterns. Boodikka responds that her changes are only physical, and she still has her former personality; John doubts this affirmation. The two discover what seems to be a Green Lantern House Sector, that, according to Boodikka, is not registered. After entering inside, they discovered Green Lanterns Horoq Nnot and Stel; the last one tells John he must flee from the planet immediately. Suddenly, Boodikka turns against John and attacks him; John fights back, but he's surrounded by more rogue Alpha Lanterns and is defeated. It's revealed that the Alpha Lanterns have begun a revolt against the rest of the Corps, and have allied themselves with the Cyborg Superman (now with an Alpha Lantern battery), taking control of Grenda to use the planet as their hidden base to turn Green Lanterns into Alpha Lanterns. John Stewart is last seen wounded and bleeding, being taken to Henshaw by Boodikka. Cyborg Superman then begins the cosmetic surgery to turn John into another Alpha Lantern.[26]

Before starting the operation, however, Henshaw connects Stewart's brain to his memories in order to see why he was turned into a cyborg. He also reveals to John, that, after being resurrected by the Manhunters after the Sinestro Corps War, he returned to Earth in the middle of the Blackest Night, and pled to the Black Lanterns (among them are the former crew of his space shuttle) and Nekron to kill him, only to discover that because he did not have a physical heart, he was invisible to them. Angered for being ignored by death itself, the Cyborg Superman encountered the mysterious hooded stranger who abducted the entities of the Emotional Spectrum. He convinced him that Ganthet has the power and knowledge to turn Alpha Lanterns into normal beings again. John realizes that Henshaw organized the revolt of the Alpha Lanterns with the sole purpose to attract Ganthet to the planet Grenda and forced him to turn Henshaw into a mortal being again. Kyle and Soranik burst into the lab and manage to rescue John, but Ganthet is captured.[27] They hide in a cave, where John informs them about the Cyborg Superman's true plan. They also discover the missing robot inhabitants of the planet, trapped in the depths of the cave by Henshaw.[28] Mounting a defense, they battle against Henshaw and his forces, destroying the cyborg's body. Henshaw leaps into Boodikka's body, but her consciousness manages to defeat his, seemingly destroying him.[29] John later joins Kyle Rayner and Ganthet in a mission to the anti-matter universe, in order to save Soranik Natu.

On their return to the matter universe, John and the others are affected by the return of Parallax to the Central Power Battery by Krona. Their previous experience with Parallax allows John, Kyle and Ganthet to escape its control, but they are forced to fight their fellow Green Lanterns. Affected by Parallax's fear powers, John and Kyle are forced to remove their rings and escape through Oa's underground.[30] They then meet up with Guy and Hal, who has the rings of the other corps' leaders. John initially chooses Larfleeze's orange ring, but is convinced by Hal to use Indigo-1's ring instead due to the debilitating effects of the orange ring on the wearer's psyche.[31] When the corrupted Green Lanterns attack, John has difficulty channeling the various corps powers through his ring. Things are made worse when Mogo joins the attack.[32] While Hal and Guy go to remove Parallax from the Central Power Battery, John and Kyle attempt to free Mogo from Krona's control. On the way, John attempts to stop the flow of tainted rings sent by Mogo, but fails. As he and Kyle head for Mogo's core instead, they discover residual Black Lantern energy around it. John absorbs the Black Lantern energy, along with all the Green Lantern energy, and regretfully uses it to destroy Mogo, knowing that they lack the time to heal Mogo before Krona uses it to 'recruit' a wave of reinforcement Green Lanterns.[33] In the fallout, the two regroup with Hal, Guy and Ganthet, using the full power of the emotional spectrum to crack open the Battery and release Parallax. Their job done, the Lanterns regain their original green rings, in preparation for the final confrontation with Krona.[34]

Following the War's conclusion, John assists a new Green Lantern from Sector 282 'selected' during the period when Mogo was under Krona's control in adjusting to the power of her ring despite the possibility that she will not be allowed to keep it by assisting her in halting a war taking place in her sector, the original Lantern for that sector having died during the war. When John is able to help the two sides find a peaceful resolution to their conflict, his new student reflects that, despite John's reputation after destroying two worlds, she now knows that nobody could regret that action more than John himself.[35]

After Hal's expulsion and Kyle's departure, John joins Guy Gardner and others in investigating recent attacks in a distant sector of space, which are revealed to be the result of an old Guardian experiment. At one point, John is forced to kill Kirrt Kallak, another Lantern who was about to give in to torture and reveal the access codes to the Oan defence network.[36] John is approached by the Alpha Lantern to arrest him for that murder.[37] He is found guilty for this crime and sentenced to death.[38] However Guy Gardner and other fellow Lanterns free him before the execution, resulting in the destruction of the Alpha Lanterns when the Green Lanterns refuse to allow John to be executed.[39] During the fights, the Alpha Lanterns (revealing to the reader that the Guardians set up these events as part of their plans to destroy the Corps) realize that all the Alpha Lanterns had become dangerously mentally unstable. Alpha Lantern Varix caused a reaction which killed all the Alpha Lanterns, including himself.[40]

During the "Rise of the Third Army" storyline, the Guardians contact John and state that Mogo's remains appear to be moving, The Guardians have come to the conclusion that Mogo is trying to reform and assign John to track it.[41] While tracking the Mogo fragment's destination, he is discovered by Fatality, who is seeking a sundered love in danger.[42] After they find Mogo's pieces- realizing that the endangered love is the male and female elements of Mogo's personality trying to come back together- John figures out that the Guardians want to use Mogo.[43] After the villainous First Lantern is destroyed and the unemotional Guardians are killed off by Sinestro, John begins a relationship with Fatality in-between on Mogo.[44]

After the invasion of Durlans, John discovered that a Durlan impersonated Fatality delectably throughout the months. John defeats the imposter and vows to searches for the real Fatality.[45] When John locates and reunites with her on the Durlan prison planet, but Fatality attacks him. She revealed to him that the Zamarons had influenced her into becoming a Star Sapphire, forcing her to love him when she actually hated him. After John refuses to fight, Fatality leaves, telling John that he and the Star Sapphires are her enemies leaving John in sorrow.[46]

John Stewart’s power ring provides him with the abilities of all other Green Lanterns; these abilities include flight and limited invulnerability.

As with all other Green Lanterns, the ring is a weapon of the mind and powered by will, therefore only limited to the wearer’s imagination.

Stewart was briefly taught by Ganthet on how to reroute his mind to think in the 'language of the spheres' the first language of the universe to evade telepathic detection by Fernus, the 'Burning Martian' identity of the Martian Manhunter; although the intensity of this method meant that John couldn't use it for more than a minute without burning his mind out, it has never been specified if this means that he cannot use it again or if he could use it at some future date if enough time has elapsed since his last use of it.

Like all Green Lanterns, Stewart's personality affects his ring's creations, giving them a solid, architectural quality. In Green Lantern: Rebirth, Hal Jordan remarks that "everything John builds is solid". He also remarked that Stewart is the best flyer in the Corps.

In Green Lantern (vol. 4) #26, it was shown that John's willpower exceeds the limit of his ring (when he tried to recreate a planet from scratch), a feat that had not been depicted before this point.

John has served in the military forces of the United States Marine Corps and is an expert sniper.

When he temporarily used Indigo-1's ring as a member of the Indigo Tribe, John was capable of accessing the powers of all Lantern Corps rings in his vicinity, even managing to harness the power of the Black Lantern Corps by drawing on the residual Black Lantern energy around Mogo's core. John is not shown to be significantly affected by the Indigo Ring's mind-altering capabilities, although this could be because he was already capable of feeling compassion.

As well as his obvious powers as a Lantern, John has recently begun to demonstrate an ability to kill when he is certain the situation requires it, destroying Mogo in order to save the universe from the army of Krona-controlled Green Lanterns that Mogo would have created and later killing a fellow Lantern who was about to give in to torture and reveal vital information to their enemies.

In the Flashpoint universe, John Stewart was a member of Team 7, an elite unit of soldiers led by Grifter. John and most of his teammates were ultimately killed during a botched attack on a Jihadist training camp.[48]

The later years of the animated version of John Stewart are detailed in a flashback story in Justice League Beyond. It is revealed that sometime after the events of the series finale of JLU, Vixen was murdered by a vengeful Shadow Thief on the night he planned to propose to her, forcing John to partner with Hawkgirl and Adam Strange in order to bring him to justice. John ultimately killed Shadow Thief via a gunshot wound to the skull, and was thus forced to resign from the Green Lantern Corps (with his ring later passing to a Chinese teenager named Kai-Ro decades later). After retiring from the Justice League, he ended up marrying Shayera and together they had a child, Warhawk.[49]

In the comic book continuation of the television series Smallville, Stewart is a member of the Green Lantern Corps who works as a police detective for the NYPD in his civilian identity.[51] He helps train Clark Kent in the use of his power ring, and later teams up with the hero to defeat Parallax.

Stewart is one of the founding members of the Justice League, as seen in the animated series of the same name and its subsequent Justice League Unlimited. He was voiced by Phil LaMarr. His characterization initially differed from the comics version by being a former United States Marine and having not been explicitly revealed to have studied architecture. Since then the comic book version has been updated to reflect these changes. In a development not seen in any other version of the Green Lantern mythos, Stewart's eyes glow green as a side effect of his fifteen years of exposure to the power ring's radiation; the glow fades when the ring runs out energy or if he is physically separated from the ring. Bruce Timm said this was done to give Stewart's face a more visually interesting look, as they decided to stick with the comic book tradition of depicting Stewart without a mask. By many accounts, the ring is also effective against yellow, contradicting an age-old weakness of the Lantern Corps. This is in continuity with the earlier appearance of Kyle Rayner on Superman: The Animated Series. There have been a few instances in the show of something yellow somehow counteracting the Lantern energy, including Jello in one humorous instance, but he is never explicitly shown to have the same weakness from the comics. Having two main characters with similar names (John and J'onn) can lead to minor confusion (Flash sometimes collectively refers to them as the two Johns); the closed captioning of some episodes misspell John's name as J'onn and vice versa.
In the JL continuity, Stewart begins to develop an intimate relationship with Shayera Hol, and their feelings for each other persist even after the events of the JL triple episode "Starcrossed", and are slowly being rebuilt in the course of the Justice League Unlimited series (even though Stewart has at that time entered a relationship with Vixen), the result of which is their son, the future superhero Warhawk. In Justice League Unlimited, his appearance is slightly tweaked as he shows a bald head and a goatee beard. Stewart maintains much of a soldier's attitude in his personal life, being stern and no-nonsense, which is somewhat offset by his relationship with the Flash, with whom he is very close despite their radically differing personalities. He is also a close friend of former U.S.M.C. comrade Rex Mason. As a humorous facet, Stewart is also revealed to be a strong fan of the classic children's film Old Yeller.

Phil LaMarr reprised his role of Stewart in the Static Shock episode "A League of Their Own." He and the Justice League call in Static (also voiced by LaMarr) and Gear in order to help fight Brainiac. In "Fallen Hero," Stewart attacks Dakota. It turns out that Sinestro orchestrated an event that resulted in Sinestro stealing Stewart's battery source. Once this is found out, Static helps Stewart defeat Sinestro and reclaim his battery source.

Stewart appears in the Young Justice animated series voiced by Kevin Michael Richardson. He appears as a member of the Justice League.[52] In the one-hour pilot episode, "Independence Day", John is shown working with Hal Jordan to contain Blockbuster after he has been defeated by Aqualad, Superboy, Robin and Kid Flash as well as carrying the non-flying mentors Aquaman, Batman, and Black Canary. In episode "Alpha Male", John is shown helping to rebuild Mount Justice after it is attacked by Red Torpedo and Red Inferno. In episode "Failsafe", a mind-training exercise conducted by Martian Manhunter, an illusory John and Hal are apparently vaporized by invading aliens. In episode "Agendas", John and Hal were convenes recruitment for the new Justice League members; he and Hal immediately dismiss the idea of adding Guy Gardner to the League. John is among the Leaguers brainwashed by Vandal Savage in "Usual Suspects" and "Auld Acquaintance". In "Alienated", as a result of his actions, he and several other members of the Justice League are forced to leave Earth and stand trial for hostile actions against alien planets that they committed while under Savage's control.

Stewart is referenced in Green Lantern: The Animated Series episode "Ranx". He is mentioned by Guy Gardner as the new Green Lantern of Sector 2814 after Gardner gets promoted to honor guard. Hal Jordan asks who the new Green Lantern is and Guy mentions his name is John Stewart. Hal responds "The fake news guy?" in reference to The Daily Show host Jon Stewart.

In February 2007 it was announced that Warner Bros hired husband and wife duo Michele and Kieran Mulroney to write a script for a Justice League film.[53]George Miller signed to direct in September 2007.[54] Titled Justice League Mortal, the script featured the John Stewart character as the Green Lantern, which was originally offered to Columbus Short.[55] Hip hop recording artist and rapper Common was ultimately cast in the role,[56] but the film was pushed back with Writers Guild Strike and the Australian Film Commission refusing to house filming over tax incentive disagreements.[57]Justice League Mortal nearly went into production but it was canceled. Subsequently Warner Bros decided to produce Green Lantern but featuring Hal Jordan instead of John Stewart. Nick Jones was rumored to have made a cameo appearance as John; however, the movie does not mention Stewart at any point.[58]

John Stewart appears in DC Universe Online, first voiced by Ken Thomas and now by George Washington III as a non-playable character. In the Hero character storyline he is in Metropolis, investigating a rare phenomenon that has caused both the Green Lantern rings and the Sinestro Corps rings to malfunction. The player will join John in a fight against Sinestro if the player has chosen a Hero, or join Sinestro to defeat John if the player has chosen a Villain. He can, however, be used in the Legends PVP Matches, where players get to use a hero or villain for short 2x2, 4x4, 5x5 or 8x8 matches. While using John, the player uses a Rifle to fight, and uses powers based on hard light constructs, like creating a huge baseball bat to hit enemy players, a green light sphere to protect him from damage, or guns to rain fire on enemy players.

John Stewart appears as a downloadable alternate skin for Hal Jordan in Injustice: Gods Among Us. Phil LaMarr reprises his role.

IGN ranked John Stewart as the 55th greatest comic book hero of all time describing him as one of the first dominant African-American heroes in the pages of DC Comics; IGN also stated that John Stewart has gone from "semi-obscurity in the mainstream to absolute recognition" thanks to his starring role in the acclaimed Justice League cartoons.[59]